<nz-layout #layout [ngStyle]="{'width': width,'height':height}">
  <nz-header>header</nz-header>
  <nz-layout>
    <nz-sider>
      <left-sider></left-sider>
    </nz-sider>
    <nz-content class="content">
      <app-main class="main"></app-main>

    </nz-content>
    <nz-sider nzWidth="300px">
      <right-sider></right-sider>
    </nz-sider>
  </nz-layout>
  <!-- <nz-footer>footer</nz-footer> -->
</nz-layout>
